Moved some organ code around, added icons and limbs for IPC, added IPC limb manufacturer.
Reimplementing checks in place of IS_SYNTHETIC.
Rebalancing EMP a bit for IPC.
- Effects can now appear and be spliced in at higher stages than their set stages (e.g. Waiting Syndrome can now occur in any block)
- Gibbingtons changed to not instantly gib infected on activation, instead either dealing massive brute damage or making humanoids' limbs fall off; this avoids three copies of Waiting Syndrome then Gibbingtons going undetected until it instagibs the entire station one after the other.
- New effect: chemical synthesis. Picks one reagent from its list, and keeps infected at 5-7u of that reagent. Infecting others, splicing the gene, etc does not change the reagent, only generating an entirely new chemical synthesis effect does that.
- Admin panel for spawning viruses
- Virus dish examine() now doesn't print 15+ lines to output, instead printing one line and a link to open a window with the rest (and it calls ..() now)
- Lowercased most virology machinery's names
- Renamed/reordered antigens, there are now 16 antigens rather than 11, and they don't use the blood markers' names despite not being affected by blood type at all
- Generating random effects does not rely so much on the GC
